Apparatus for manufacturing wire ropes and the like



June 7, 1932. WOLF 1,862,345

APPARATUS FOR MANUFACTURING WIRE ROPE-S AND THE LIKE Filed Nov.- 25.1929 iffnesses: I

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Patented June 7, 1932 GUSTAV WOLF, OF GUTERSLOH, GERMANY APPARATUS FORMANUFACTUR Application filed November This invention relates to anapparatus for reducing the twist tensions of wire ropes and strands,according to which the finished rope or strand'is bent repeatedly indifferent planes 6 radial to its axis. There are twist-removing devicesknown which bend the finished ropes and strands in one plane by means ofa set of rollers, but they are unable to bring about the removal oftwist in a direct manner. It

10 has further been proposed to remove tension bysimultaneously'bending, during the-passage of the rope, two neighboringparts thereof in opposite directions on circulating paths so that thepoints of application of the bending forces travel in a helical lineabout the rope and each portion of the rope and strand is bent only intwo different directions.

Similar defects are found in a known device whose bending rolls, thougharranged in tandem order, have equi-directional axes of rotation andmove transversely to the longitudinal axis of the rope. The bendingrolls will thus be applied to only one point of the rope ata time, whichmay easily cause a loosening of the rope layers. Furthermore, it isdisadvantageous to mechanically cause the bending rolls to rotate incircular fashion.

The drawbacks mentioned are eliminated by the twist removing deviceaccording to the invention by arranging several three-roller sets onebehind the other, the axes of rotation of which intersect each other. Asthe bendin rolls rotate in the direction of the longitu inal axis of therope, the laying of the latter is not destroyed and the bending of therope can be carried out at any twisting de-' ree. a Roller devices of asimilar type are known per se, but they serve for straightening rods andthe like with solid structure and differ fundamentallyfrom the object ofthe present invention in so far as they are unable to carry out abending action in order to remove the twist from ropes and the like,although they are capable of bending rods into the straight longitudinalaxis, it being the characteristic requirement of twist-removal bybending to extend the bending of the rope material beyond the latterslongitudinal axis and elastic limit. The rolling device is pref- INGWIRE norns AND THE LIKE 25, 1929. 'Seria1No.409,668.

erably arranged behind the pressing aw head of the rope forming machine.

The invention may evidently be realized also with other rolling devices,for instance by making the sets of rolls intersect one another notregularly successively but by carrying out the repeated bending withseveral sets of rolls first in one plane and then in a similar manner inanother plane. The bending may be done in less or more than four planes.The form of construction which will be hereinafter described has beenfound to be the most practical. It is also not necessary, to arrange thetwist-removing device directly in the rope-forming machine.

In the accompanying drawing a form of construction by way of example isshown, in

which Fig. 1 shows a side elevation of the untwisting device.

Fig. 2 is a top plan view of Fig. 1. 1liigsB and 4 each show ajournalling of a re After the rope 'forming material at has come, in amanner known per se, radiating from the rope forming head, the rope layis produced as usual in the press jawhead a composed of two parts. Apair of rolls 6, a grooved accurately in accordance with the crosssection of the strand 8 or of the rope is. arranged directly behind thepress jaw head a and designed to calibrate the strand or rope as usual.

For removing of the twists preferably sets of bending rolls e, e, f, f,P, g, g, 9 and 71 h, It? of known type are provided and arranged the onebehind the other behind the grooved rolls 6 and 0, the axle bearings ofthe rolls of said sets being successively situated in different radialplanes.

In the embodiment illustrated the roll sets for each rope bending arearranged behind and transversely to one another in their axialdirections, so that the bending of the strand or rope s is possible indifi'erent radial directions. The degree of bending of the strand or ofthe rope and the number of bendings are selected, so that by thefrequent bendings the natural tension ofthe material and consequentlythe twist is suppressed.

Herefrom follows that the degree of bending of the strand or of the ropemust be greater than the twisting degree of the wires in the strand orin the rope.

After the twist-removing the strand or the rope .9 must be straightenedagain by means of two pairs of rolls '5, arranged in a known mannertransversely to one another and which might be also grooved.

The calibrating, untwistingand straightening-devices are preferablymounted in a common frame (Figs. 3 and 4) the rolls 1' being, ifnecessary, rotatable in ball bearings and guided in adjustin blocks m.Screw spindles n serve for a justing and securing the adjustable blocks.

What I claim, is:

Apparatus for reducing the twist tension of wire ropes and strands bybending as described,comprising a plurality of roller sets disposed onebehind the other in zigzag order and adapted to bend the wire andstrands beyond their longitudinal axis and in different planes radial totheir axis, the individual rolls rotating in the longitudinal directionof the rope and strands.

In testimony whereof I have hereunto set my hand.

GUSTAV WOLF.

